Hertel 2329373 Hand Reamer 0.1406 in 4 Flute Hss

Product Description

The HERTEL 2329373 is a straight-shank hand reamer designed for precision hole finishing in metal workpieces. Built from high speed steel (HSS) with a bright uncoated finish, this reamer delivers accurate sizing of drilled or bored holes to tight tolerances. The spiral flute geometry with left-hand spiral and right-hand cut helps pull chips away from the cutting edge, reducing chatter and producing a cleaner bore surface. At 0.1406 inches in diameter with a 1.63-inch flute length and 3.25-inch overall length, it is sized for small-bore finish work in machining, maintenance, and fabrication applications. Machinists, tool and die technicians, and maintenance professionals are the primary users.

This hand reamer is suited for manual reaming operations where precise hole diameter control is required. The 0.1406-inch cutting diameter corresponds to a number-letter series bore size commonly encountered in precision assembly, jig and fixture work, and mechanical maintenance tasks. The 4-flute spiral configuration provides stable cutting action across a range of ductile and ferrous materials. It is intended for use with a tap wrench or adjustable reamer handle and is appropriate for both production and repair environments where hand-operated reaming is preferred over machine reaming.

Key Features

• 0.1406-inch reamer diameter for precision bore finishing
• Spiral flute design with left-hand helix and right-hand cut reduces chatter and improves chip evacuation
• 4 flutes provide balanced cutting action and consistent hole geometry
• High speed steel construction offers durability across ferrous and ductile workpiece materials
• Bright uncoated finish suitable for general-purpose reaming applications
• Straight shank compatible with standard tap wrenches and reamer handles

Compatibility

Designed as an OEM-style hand reamer for use in general machining, maintenance, and fabrication applications requiring a 0.1406-inch finished bore diameter.

Installation Notes

Hand reaming should be performed by a qualified machinist or maintenance technician familiar with cutting tool operation. Always secure the workpiece firmly before beginning the reaming operation, and apply an appropriate cutting fluid to extend tool life and improve surface finish. Rotate the reamer clockwise only when advancing; never rotate in reverse, as this dulls the cutting edges. Inspect the reamer for wear or chipping before each use.